All items in category Magazine Articles

New EC Driver Technology

September 23, 2015 by Jens H.Waale

New EC Driver Technology

In this article, originally published in Voice Coil April 2014, the author and inventor describes the Eddy Current (EC) driver concept, a new kind of electromagnetic transducer for sound and ultrasound reproduction. The transducer is unique in that the force acting on the membrane is uniformly distributed over much of it, as in an electrostatic sound transducer, but with substantially more power per square unit.

Plastic Speaker Cone History

September 17, 2015 by Mike Klasco

Plastic Speaker Cone History

Mike Klasco explains the evolution of speaker cone materials, from paper to the first experiments in plastics and finally to Polypropylene (PP), which became the preferred resin sheet material for thermoformed speaker cones. The article also discusses recent trends in woven composite cone fabrication. This article was published in Voice Coil, February 2014.

Testing the Spin-Clean LP Washer Machine

September 17, 2015 by Victor Staggs

Testing the Spin-Clean LP Washer Machine

The Spin-Clean Record Washer MKII was reviewed in audioXpress April 2013. The company continues to manufacture and hand-assemble the Spin-Clean in Pittsburgh, PA, since 1975, and enjoying international success. Their fluid is great for removing dirt, dust, and oily fingerprints from records without harming any of the vinyl’s properties, and even works well with moldy records.

Upmixing — Stereo to Surround

September 8, 2015 by Jon Schorah

Upmixing — Stereo to Surround

Just in time for the launch of NUGEN Audio’s new Halo Upmix Plug-in, a new upmixer for the post-production market, at the IBC 2015 show in Amsterdam, we are sharing this fascinating article from the company’s Creative Director and Co-Founder Jon Schorah.

MEMS Microspeakers Are Truly Digital Transducers

August 27, 2015 by Mike Klasco

MEMS Microspeakers Are Truly Digital Transducers

This VC Spotlight article, from Mike Klasco includes some really great insight on upcoming developments and new companies active in the MEMS field. Microelectromechanical systems (MEMS) loudspeakers are just now appearing. As Mike explains “this is a really new technology, so new that only recently were functional lab prototypes operational.” Article originally published in Voice Coil, May 2015.

Standards Review: Considerations for the MPEG-H Audio Standard

July 31, 2015 by Joao Martins

Standards Review: Considerations for the MPEG-H Audio Standard

This article discusses the plan for the new MPEG-H Audio standard, a real-time 3-D audio encoder system with applications for broadcast and streaming distribution, developed in large part by the Fraunhofer Institute in Germany, and recently finalized and submitted as an ISO/MPEG standard.

Fresh from the Bench: Benchmark AHB2 Stereo Power Amplifier

July 24, 2015 by Gary Galo

Fresh from the Bench: Benchmark AHB2 Stereo Power Amplifier

This in-depth review of the Benchmark AHB2 Stereo Power Amplifier, published in audioXpress April 2015, clearly explains why you should listen to this one. Designed in response to the needs of high-resolution audio sources, Gary Galo spent some time with it and explains all the reasons why he was impressed. Very impressed.

Fresh from the Bench: Benchmark DAC2 DX Stereo D/A Converter

July 22, 2015 by Gary Galo

Fresh from the Bench: Benchmark DAC2 DX Stereo D/A Converter

The DAC2 series are the latest digital-to-analog converters from Benchmark Media Systems, the American audio manufacturer based in Syracuse, NY. The model reviewed here is the DAC2 DX, which has been tailored for users who don’t have analog sources or who use a separate analog preamp. Read the full review.

Musicality and Distortion: A Conversation

July 8, 2015 by Jan Didden, Dennis Colin and Jean Hiraga

Musicality and Distortion: A Conversation

Three audio experts discuss the role of distortion levels in what we hear. The debate was caused by an article titled “Amplifier Musicality - A Study of Amplifier Harmonic Distortion Spectrum Analysis” by Jean Hiraga, which originated comments by Jan Didden, Dennis Colin and a subsequent response by Jean Hiraga. The original article appeared in audioXpress March 2004 and the resulting conversation was published in audioXpress October 2005.

Vendor Selection: What Do These Crazy Americans Want?

July 8, 2015 by Mike Klasco

Vendor Selection: What Do These Crazy Americans Want?

Regardless of how well our Asian partners speak English, there is still quite a cultural gap that often brings on gray hair and increases blood pressure to both sides. Mike Klasco discusses the differing perceptions and sensibilities between Western customers and Asian vendors. This article was originally published in Voice Coil, March 2012.

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